In this module you can study how to substitute numbers into algebraic expressions.
For example, you'll study how to find the value of (x + 2y) when x=3 and y=5.
In this module you can study how to substitute given values into a formula.
For example, you'll learn how to find the perimeter of a square (the formula for this is p=2w + 2l) when you know the width is 10m and the length is 20m.
In this module, you will study the Pythagorean Theorem, which describes the amazingly simple and useful relationship that exists between the sides of a right triangle.